[SOLVED] Network speed set to 100mb now

[whipdancer]

EDIT: I replaced the cable. I dismissed the notion that it could have been the cable initially because that same cable was fine with the previous motherboard. Ethtool -s wasn't working. I thought swapping the cable couldn't hurt.  That fixed it (even though the new cable is rated as Cat5, and the old cable was Cat6).  The output from ethtool now shows speed as 1000Mb/s.  I'll pick up a new Cat6 cable this weekend.

I had an issue and ended up replacing MB & CPU. I opted for a Ryzen setup.  MB is a Gigabyte - https://www.gigabyte.com/Motherboard/GA-AX370-Gaming-3-rev-1x#kf, and it uses Realtek GbE for networking.  As I stated in the title, Unraid reports 100mb connection instead of 1000mb/1Gb.

The ethtool output:
 

:/# ethtool eth0
Settings for eth0:
        Supported ports: [ TP MII ]
        Supported link modes:   10baseT/Half 10baseT/Full
                                100baseT/Half 100baseT/Full
                                1000baseT/Half 1000baseT/Full
        Supported pause frame use: No
        Supports auto-negotiation: Yes
        Supported FEC modes: Not reported
        Advertised link modes:  10baseT/Half 10baseT/Full
                                100baseT/Half 100baseT/Full
        Advertised pause frame use: Symmetric Receive-only
        Advertised auto-negotiation: Yes
        Advertised FEC modes: Not reported
        Link partner advertised link modes:  10baseT/Half 10baseT/Full
                                             100baseT/Half 100baseT/Full
        Link partner advertised pause frame use: Symmetric
        Link partner advertised auto-negotiation: Yes
        Link partner advertised FEC modes: Not reported
        Speed: 100Mb/s
        Duplex: Full
        Port: MII
        PHYAD: 0
        Transceiver: internal
        Auto-negotiation: on
        Supports Wake-on: pumbg
        Wake-on: g
        Current message level: 0x00000033 (51)
                               drv probe ifdown ifup
        Link detected: yes

 

I see that 1000mb is supported, but not advertised (I have no idea how relevant that is). 

Is there something I can do to fix this so that I have 1000mb again?

 

Thanks,

Whip

 

[Frank1940]

Before you go out and buy a new cable, you might want to do a search on cat5e vs cat6.  If the run is short, the cat5e will do the job unless the environment is supper electrically noisy.  I know you said it was a cat5 cable, but it has been rather hard to buy cat5 for several years--  You will generally get cat5e...

[whipdancer]

8 minutes ago, Frank1940 said:

Before you go out and buy a new cable, you might want to do a search on cat5e vs cat6.  If the run is short, the cat5e will do the job unless the environment is supper electrically noisy.  I know you said it was a cat5 cable, but it has been rather hard to buy cat5 for several years--  You will generally get cat5e...

The run to my switch is very short which is probably why the Cat5 cable is working (it's a 5ft cable, I think).

I'm going to buy a new Cat6 cable that will sit on my self until I need one again.